21910876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 44248960

約数和(自身を除く): 22338084

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 67, 76, 134, 247, 268, 331, 494, 662, 871, 988, 1273, 1324, 1742, 2546, 3484, 4303, 5092, 6289, 8606, 12578, 16549, 17212, 22177, 25156, 33098, 44354, 66196, 81757, 88708, 163514, 288301, 327028, 421363, 576602, 842726, 1153204, 1685452, 5477719, 10955438, 21910876]

約数ペア:

[(1, 21910876), (2, 10955438), (4, 5477719), (13, 1685452), (19, 1153204), (26, 842726), (38, 576602), (52, 421363), (67, 327028), (76, 288301), (134, 163514), (247, 88708), (268, 81757), (331, 66196), (494, 44354), (662, 33098), (871, 25156), (988, 22177), (1273, 17212), (1324, 16549), (1742, 12578), (2546, 8606), (3484, 6289), (4303, 5092)]