21582988

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 23462516

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 83, 148, 166, 251, 259, 332, 502, 518, 581, 1004, 1036, 1162, 1757, 2324, 3071, 3514, 6142, 7028, 9287, 12284, 18574, 20833, 21497, 37148, 41666, 42994, 65009, 83332, 85988, 130018, 145831, 260036, 291662, 583324, 770821, 1541642, 3083284, 5395747, 10791494, 21582988]

約数ペア:

[(1, 21582988), (2, 10791494), (4, 5395747), (7, 3083284), (14, 1541642), (28, 770821), (37, 583324), (74, 291662), (83, 260036), (148, 145831), (166, 130018), (251, 85988), (259, 83332), (332, 65009), (502, 42994), (518, 41666), (581, 37148), (1004, 21497), (1036, 20833), (1162, 18574), (1757, 12284), (2324, 9287), (3071, 7028), (3514, 6142)]