164020521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 279982080

約数和(自身を除く): 115961559

約数列:

[1, 3, 7, 19, 21, 23, 57, 61, 69, 133, 161, 183, 293, 399, 427, 437, 483, 879, 1159, 1281, 1311, 1403, 2051, 3059, 3477, 4209, 5567, 6153, 6739, 8113, 9177, 9821, 16701, 17873, 20217, 24339, 26657, 29463, 38969, 47173, 53619, 79971, 116907, 125111, 128041, 141519, 186599, 339587, 375333, 384123, 411079, 559797, 896287, 1018761, 1233237, 2377109, 2688861, 2877553, 7131327, 7810501, 8632659, 23431503, 54673507, 164020521]

約数ペア:

[(1, 164020521), (3, 54673507), (7, 23431503), (19, 8632659), (21, 7810501), (23, 7131327), (57, 2877553), (61, 2688861), (69, 2377109), (133, 1233237), (161, 1018761), (183, 896287), (293, 559797), (399, 411079), (427, 384123), (437, 375333), (483, 339587), (879, 186599), (1159, 141519), (1281, 128041), (1311, 125111), (1403, 116907), (2051, 79971), (3059, 53619), (3477, 47173), (4209, 38969), (5567, 29463), (6153, 26657), (6739, 24339), (8113, 20217), (9177, 17873), (9821, 16701)]