21855750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 65415168

約数和(自身を除く): 43559418

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 25, 30, 35, 42, 46, 50, 69, 70, 75, 105, 115, 125, 138, 150, 161, 175, 181, 210, 230, 250, 322, 345, 350, 362, 375, 483, 525, 543, 575, 690, 750, 805, 875, 905, 966, 1050, 1086, 1150, 1267, 1610, 1725, 1750, 1810, 2415, 2534, 2625, 2715, 2875, 3450, 3801, 4025, 4163, 4525, 4830, 5250, 5430, 5750, 6335, 7602, 8050, 8326, 8625, 9050, 12075, 12489, 12670, 13575, 17250, 19005, 20125, 20815, 22625, 24150, 24978, 27150, 29141, 31675, 38010, 40250, 41630, 45250, 58282, 60375, 62445, 63350, 67875, 87423, 95025, 104075, 120750, 124890, 135750, 145705, 158375, 174846, 190050, 208150, 291410, 312225, 316750, 437115, 475125, 520375, 624450, 728525, 874230, 950250, 1040750, 1457050, 1561125, 2185575, 3122250, 3642625, 4371150, 7285250, 10927875, 21855750]

約数ペア:

[(1, 21855750), (2, 10927875), (3, 7285250), (5, 4371150), (6, 3642625), (7, 3122250), (10, 2185575), (14, 1561125), (15, 1457050), (21, 1040750), (23, 950250), (25, 874230), (30, 728525), (35, 624450), (42, 520375), (46, 475125), (50, 437115), (69, 316750), (70, 312225), (75, 291410), (105, 208150), (115, 190050), (125, 174846), (138, 158375), (150, 145705), (161, 135750), (175, 124890), (181, 120750), (210, 104075), (230, 95025), (250, 87423), (322, 67875), (345, 63350), (350, 62445), (362, 60375), (375, 58282), (483, 45250), (525, 41630), (543, 40250), (575, 38010), (690, 31675), (750, 29141), (805, 27150), (875, 24978), (905, 24150), (966, 22625), (1050, 20815), (1086, 20125), (1150, 19005), (1267, 17250), (1610, 13575), (1725, 12670), (1750, 12489), (1810, 12075), (2415, 9050), (2534, 8625), (2625, 8326), (2715, 8050), (2875, 7602), (3450, 6335), (3801, 5750), (4025, 5430), (4163, 5250), (4525, 4830)]