21078752

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{937}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 44911440

約数和(自身を除く): 23832688

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 74, 76, 148, 152, 296, 304, 592, 608, 703, 937, 1184, 1406, 1874, 2812, 3748, 5624, 7496, 11248, 14992, 17803, 22496, 29984, 34669, 35606, 69338, 71212, 138676, 142424, 277352, 284848, 554704, 569696, 658711, 1109408, 1317422, 2634844, 5269688, 10539376, 21078752]

約数ペア:

[(1, 21078752), (2, 10539376), (4, 5269688), (8, 2634844), (16, 1317422), (19, 1109408), (32, 658711), (37, 569696), (38, 554704), (74, 284848), (76, 277352), (148, 142424), (152, 138676), (296, 71212), (304, 69338), (592, 35606), (608, 34669), (703, 29984), (937, 22496), (1184, 17803), (1406, 14992), (1874, 11248), (2812, 7496), (3748, 5624)]