21746830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26153330

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 83, 95, 133, 166, 190, 197, 266, 394, 415, 581, 665, 830, 985, 1162, 1330, 1379, 1577, 1970, 2758, 2905, 3154, 3743, 5810, 6895, 7486, 7885, 11039, 13790, 15770, 16351, 18715, 22078, 26201, 32702, 37430, 52402, 55195, 81755, 110390, 114457, 131005, 163510, 228914, 262010, 310669, 572285, 621338, 1144570, 1553345, 2174683, 3106690, 4349366, 10873415, 21746830]

約数ペア:

[(1, 21746830), (2, 10873415), (5, 4349366), (7, 3106690), (10, 2174683), (14, 1553345), (19, 1144570), (35, 621338), (38, 572285), (70, 310669), (83, 262010), (95, 228914), (133, 163510), (166, 131005), (190, 114457), (197, 110390), (266, 81755), (394, 55195), (415, 52402), (581, 37430), (665, 32702), (830, 26201), (985, 22078), (1162, 18715), (1330, 16351), (1379, 15770), (1577, 13790), (1970, 11039), (2758, 7885), (2905, 7486), (3154, 6895), (3743, 5810)]