21870072

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{6199}}^1$

素因数の和:6225

約数の個数: 72

約数和(自身を含む): 68913000

約数和(自身を除く): 47042928

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 6199, 12398, 18597, 24796, 37194, 43393, 49592, 55791, 74388, 86786, 111582, 130179, 148776, 173572, 223164, 260358, 303751, 347144, 390537, 446328, 520716, 607502, 781074, 911253, 1041432, 1215004, 1562148, 1822506, 2430008, 2733759, 3124296, 3645012, 5467518, 7290024, 10935036, 21870072]

約数ペア:

[(1, 21870072), (2, 10935036), (3, 7290024), (4, 5467518), (6, 3645012), (7, 3124296), (8, 2733759), (9, 2430008), (12, 1822506), (14, 1562148), (18, 1215004), (21, 1041432), (24, 911253), (28, 781074), (36, 607502), (42, 520716), (49, 446328), (56, 390537), (63, 347144), (72, 303751), (84, 260358), (98, 223164), (126, 173572), (147, 148776), (168, 130179), (196, 111582), (252, 86786), (294, 74388), (392, 55791), (441, 49592), (504, 43393), (588, 37194), (882, 24796), (1176, 18597), (1764, 12398), (3528, 6199)]