221401845

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 478033920

約数和(自身を除く): 256632075

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 41, 45, 49, 63, 79, 93, 105, 123, 147, 155, 205, 217, 237, 245, 279, 287, 315, 369, 395, 441, 465, 553, 615, 651, 711, 735, 861, 1085, 1185, 1271, 1395, 1435, 1519, 1659, 1845, 1953, 2009, 2205, 2449, 2583, 2765, 3239, 3255, 3555, 3813, 3871, 4305, 4557, 4977, 6027, 6355, 7347, 7595, 8295, 8897, 9717, 9765, 10045, 11439, 11613, 12245, 12915, 13671, 16195, 17143, 18081, 19065, 19355, 22041, 22673, 22785, 24885, 26691, 29151, 30135, 34839, 36735, 44485, 48585, 51429, 57195, 58065, 62279, 68019, 68355, 80073, 85715, 90405, 100409, 110205, 113365, 120001, 133455, 145755, 154287, 158711, 174195, 186837, 204057, 257145, 301227, 311395, 340095, 360003, 400365, 476133, 502045, 560511, 600005, 702863, 771435, 793555, 903681, 934185, 1020285, 1080009, 1428399, 1506135, 1800015, 2108589, 2380665, 2802555, 3514315, 4518405, 4920041, 5400045, 6325767, 7141995, 10542945, 14760123, 24600205, 31628835, 44280369, 73800615, 221401845]

約数ペア:

[(1, 221401845), (3, 73800615), (5, 44280369), (7, 31628835), (9, 24600205), (15, 14760123), (21, 10542945), (31, 7141995), (35, 6325767), (41, 5400045), (45, 4920041), (49, 4518405), (63, 3514315), (79, 2802555), (93, 2380665), (105, 2108589), (123, 1800015), (147, 1506135), (155, 1428399), (205, 1080009), (217, 1020285), (237, 934185), (245, 903681), (279, 793555), (287, 771435), (315, 702863), (369, 600005), (395, 560511), (441, 502045), (465, 476133), (553, 400365), (615, 360003), (651, 340095), (711, 311395), (735, 301227), (861, 257145), (1085, 204057), (1185, 186837), (1271, 174195), (1395, 158711), (1435, 154287), (1519, 145755), (1659, 133455), (1845, 120001), (1953, 113365), (2009, 110205), (2205, 100409), (2449, 90405), (2583, 85715), (2765, 80073), (3239, 68355), (3255, 68019), (3555, 62279), (3813, 58065), (3871, 57195), (4305, 51429), (4557, 48585), (4977, 44485), (6027, 36735), (6355, 34839), (7347, 30135), (7595, 29151), (8295, 26691), (8897, 24885), (9717, 22785), (9765, 22673), (10045, 22041), (11439, 19355), (11613, 19065), (12245, 18081), (12915, 17143), (13671, 16195)]