21413312

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:337

約数の個数: 56

約数和(自身を含む): 45061632

約数和(自身を除く): 23648320

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 172, 248, 251, 344, 496, 502, 688, 992, 1004, 1333, 1376, 1984, 2008, 2666, 2752, 4016, 5332, 7781, 8032, 10664, 10793, 15562, 16064, 21328, 21586, 31124, 42656, 43172, 62248, 85312, 86344, 124496, 172688, 248992, 334583, 345376, 497984, 669166, 690752, 1338332, 2676664, 5353328, 10706656, 21413312]

約数ペア:

[(1, 21413312), (2, 10706656), (4, 5353328), (8, 2676664), (16, 1338332), (31, 690752), (32, 669166), (43, 497984), (62, 345376), (64, 334583), (86, 248992), (124, 172688), (172, 124496), (248, 86344), (251, 85312), (344, 62248), (496, 43172), (502, 42656), (688, 31124), (992, 21586), (1004, 21328), (1333, 16064), (1376, 15562), (1984, 10793), (2008, 10664), (2666, 8032), (2752, 7781), (4016, 5332)]