17991380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1543}}^1$

素因数の和:1616

約数の個数: 48

約数和(自身を含む): 42021504

約数和(自身を除く): 24030124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1543, 2332, 2915, 3086, 5830, 6172, 7715, 11660, 15430, 16973, 30860, 33946, 67892, 81779, 84865, 163558, 169730, 327116, 339460, 408895, 817790, 899569, 1635580, 1799138, 3598276, 4497845, 8995690, 17991380]

約数ペア:

[(1, 17991380), (2, 8995690), (4, 4497845), (5, 3598276), (10, 1799138), (11, 1635580), (20, 899569), (22, 817790), (44, 408895), (53, 339460), (55, 327116), (106, 169730), (110, 163558), (212, 84865), (220, 81779), (265, 67892), (530, 33946), (583, 30860), (1060, 16973), (1166, 15430), (1543, 11660), (2332, 7715), (2915, 6172), (3086, 5830)]