21227030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:413

約数の個数: 48

約数和(自身を含む): 42919632

約数和(自身を除く): 21692602

約数列:

[1, 2, 5, 10, 11, 22, 53, 55, 106, 110, 121, 242, 265, 331, 530, 583, 605, 662, 1166, 1210, 1655, 2915, 3310, 3641, 5830, 6413, 7282, 12826, 17543, 18205, 32065, 35086, 36410, 40051, 64130, 80102, 87715, 175430, 192973, 200255, 385946, 400510, 964865, 1929730, 2122703, 4245406, 10613515, 21227030]

約数ペア:

[(1, 21227030), (2, 10613515), (5, 4245406), (10, 2122703), (11, 1929730), (22, 964865), (53, 400510), (55, 385946), (106, 200255), (110, 192973), (121, 175430), (242, 87715), (265, 80102), (331, 64130), (530, 40051), (583, 36410), (605, 35086), (662, 32065), (1166, 18205), (1210, 17543), (1655, 12826), (2915, 7282), (3310, 6413), (3641, 5830)]