20313538

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:259

約数の個数: 48

約数和(自身を含む): 38228760

約数和(自身を除く): 17915222

約数列:

[1, 2, 7, 14, 17, 34, 49, 89, 98, 119, 137, 178, 238, 274, 623, 833, 959, 1246, 1513, 1666, 1918, 2329, 3026, 4361, 4658, 6713, 8722, 10591, 12193, 13426, 16303, 21182, 24386, 32606, 74137, 85351, 114121, 148274, 170702, 207281, 228242, 414562, 597457, 1194914, 1450967, 2901934, 10156769, 20313538]

約数ペア:

[(1, 20313538), (2, 10156769), (7, 2901934), (14, 1450967), (17, 1194914), (34, 597457), (49, 414562), (89, 228242), (98, 207281), (119, 170702), (137, 148274), (178, 114121), (238, 85351), (274, 74137), (623, 32606), (833, 24386), (959, 21182), (1246, 16303), (1513, 13426), (1666, 12193), (1918, 10591), (2329, 8722), (3026, 6713), (4361, 4658)]