21751320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4421}}^1$

素因数の和:4476

約数の個数: 64

約数和(自身を含む): 66860640

約数和(自身を除く): 45109320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4421, 4920, 8842, 13263, 17684, 22105, 26526, 35368, 44210, 53052, 66315, 88420, 106104, 132630, 176840, 181261, 265260, 362522, 530520, 543783, 725044, 906305, 1087566, 1450088, 1812610, 2175132, 2718915, 3625220, 4350264, 5437830, 7250440, 10875660, 21751320]

約数ペア:

[(1, 21751320), (2, 10875660), (3, 7250440), (4, 5437830), (5, 4350264), (6, 3625220), (8, 2718915), (10, 2175132), (12, 1812610), (15, 1450088), (20, 1087566), (24, 906305), (30, 725044), (40, 543783), (41, 530520), (60, 362522), (82, 265260), (120, 181261), (123, 176840), (164, 132630), (205, 106104), (246, 88420), (328, 66315), (410, 53052), (492, 44210), (615, 35368), (820, 26526), (984, 22105), (1230, 17684), (1640, 13263), (2460, 8842), (4421, 4920)]