21529950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 96

約数和(自身を含む): 58767072

約数和(自身を除く): 37237122

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 61, 65, 75, 78, 122, 130, 150, 181, 183, 195, 305, 325, 362, 366, 390, 543, 610, 650, 793, 905, 915, 975, 1086, 1525, 1586, 1810, 1830, 1950, 2353, 2379, 2715, 3050, 3965, 4525, 4575, 4706, 4758, 5430, 7059, 7930, 9050, 9150, 11041, 11765, 11895, 13575, 14118, 19825, 22082, 23530, 23790, 27150, 33123, 35295, 39650, 55205, 58825, 59475, 66246, 70590, 110410, 117650, 118950, 143533, 165615, 176475, 276025, 287066, 331230, 352950, 430599, 552050, 717665, 828075, 861198, 1435330, 1656150, 2152995, 3588325, 4305990, 7176650, 10764975, 21529950]

約数ペア:

[(1, 21529950), (2, 10764975), (3, 7176650), (5, 4305990), (6, 3588325), (10, 2152995), (13, 1656150), (15, 1435330), (25, 861198), (26, 828075), (30, 717665), (39, 552050), (50, 430599), (61, 352950), (65, 331230), (75, 287066), (78, 276025), (122, 176475), (130, 165615), (150, 143533), (181, 118950), (183, 117650), (195, 110410), (305, 70590), (325, 66246), (362, 59475), (366, 58825), (390, 55205), (543, 39650), (610, 35295), (650, 33123), (793, 27150), (905, 23790), (915, 23530), (975, 22082), (1086, 19825), (1525, 14118), (1586, 13575), (1810, 11895), (1830, 11765), (1950, 11041), (2353, 9150), (2379, 9050), (2715, 7930), (3050, 7059), (3965, 5430), (4525, 4758), (4575, 4706)]