21975900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 69995520

約数和(自身を除く): 48019620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 31, 34, 50, 51, 60, 62, 68, 75, 85, 93, 100, 102, 124, 139, 150, 155, 170, 186, 204, 255, 278, 300, 310, 340, 372, 417, 425, 465, 510, 527, 556, 620, 695, 775, 834, 850, 930, 1020, 1054, 1275, 1390, 1550, 1581, 1668, 1700, 1860, 2085, 2108, 2325, 2363, 2550, 2635, 2780, 3100, 3162, 3475, 4170, 4309, 4650, 4726, 5100, 5270, 6324, 6950, 7089, 7905, 8340, 8618, 9300, 9452, 10425, 10540, 11815, 12927, 13175, 13900, 14178, 15810, 17236, 20850, 21545, 23630, 25854, 26350, 28356, 31620, 35445, 39525, 41700, 43090, 47260, 51708, 52700, 59075, 64635, 70890, 73253, 79050, 86180, 107725, 118150, 129270, 141780, 146506, 158100, 177225, 215450, 219759, 236300, 258540, 293012, 323175, 354450, 366265, 430900, 439518, 646350, 708900, 732530, 879036, 1098795, 1292700, 1465060, 1831325, 2197590, 3662650, 4395180, 5493975, 7325300, 10987950, 21975900]

約数ペア:

[(1, 21975900), (2, 10987950), (3, 7325300), (4, 5493975), (5, 4395180), (6, 3662650), (10, 2197590), (12, 1831325), (15, 1465060), (17, 1292700), (20, 1098795), (25, 879036), (30, 732530), (31, 708900), (34, 646350), (50, 439518), (51, 430900), (60, 366265), (62, 354450), (68, 323175), (75, 293012), (85, 258540), (93, 236300), (100, 219759), (102, 215450), (124, 177225), (139, 158100), (150, 146506), (155, 141780), (170, 129270), (186, 118150), (204, 107725), (255, 86180), (278, 79050), (300, 73253), (310, 70890), (340, 64635), (372, 59075), (417, 52700), (425, 51708), (465, 47260), (510, 43090), (527, 41700), (556, 39525), (620, 35445), (695, 31620), (775, 28356), (834, 26350), (850, 25854), (930, 23630), (1020, 21545), (1054, 20850), (1275, 17236), (1390, 15810), (1550, 14178), (1581, 13900), (1668, 13175), (1700, 12927), (1860, 11815), (2085, 10540), (2108, 10425), (2325, 9452), (2363, 9300), (2550, 8618), (2635, 8340), (2780, 7905), (3100, 7089), (3162, 6950), (3475, 6324), (4170, 5270), (4309, 5100), (4650, 4726)]