21753914

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 21791686

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 79, 89, 91, 119, 158, 178, 182, 221, 238, 442, 553, 623, 1027, 1106, 1157, 1246, 1343, 1513, 1547, 2054, 2314, 2686, 3026, 3094, 7031, 7189, 8099, 9401, 10591, 14062, 14378, 16198, 17459, 18802, 19669, 21182, 34918, 39338, 49217, 91403, 98434, 119527, 122213, 137683, 182806, 239054, 244426, 275366, 639821, 836689, 1279642, 1553851, 1673378, 3107702, 10876957, 21753914]

約数ペア:

[(1, 21753914), (2, 10876957), (7, 3107702), (13, 1673378), (14, 1553851), (17, 1279642), (26, 836689), (34, 639821), (79, 275366), (89, 244426), (91, 239054), (119, 182806), (158, 137683), (178, 122213), (182, 119527), (221, 98434), (238, 91403), (442, 49217), (553, 39338), (623, 34918), (1027, 21182), (1106, 19669), (1157, 18802), (1246, 17459), (1343, 16198), (1513, 14378), (1547, 14062), (2054, 10591), (2314, 9401), (2686, 8099), (3026, 7189), (3094, 7031)]