21644844

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^3\times {\mathrm{821}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 54778080

約数和(自身を除く): 33133236

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 821, 1014, 1642, 2028, 2197, 2463, 3284, 4394, 4926, 6591, 8788, 9852, 10673, 13182, 21346, 26364, 32019, 42692, 64038, 128076, 138749, 277498, 416247, 554996, 832494, 1664988, 1803737, 3607474, 5411211, 7214948, 10822422, 21644844]

約数ペア:

[(1, 21644844), (2, 10822422), (3, 7214948), (4, 5411211), (6, 3607474), (12, 1803737), (13, 1664988), (26, 832494), (39, 554996), (52, 416247), (78, 277498), (156, 138749), (169, 128076), (338, 64038), (507, 42692), (676, 32019), (821, 26364), (1014, 21346), (1642, 13182), (2028, 10673), (2197, 9852), (2463, 8788), (3284, 6591), (4394, 4926)]