21161632

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 43637832

約数和(自身を除く): 22476200

約数列:

[1, 2, 4, 8, 16, 32, 37, 61, 74, 122, 148, 244, 293, 296, 488, 586, 592, 976, 1172, 1184, 1952, 2257, 2344, 4514, 4688, 9028, 9376, 10841, 17873, 18056, 21682, 35746, 36112, 43364, 71492, 72224, 86728, 142984, 173456, 285968, 346912, 571936, 661301, 1322602, 2645204, 5290408, 10580816, 21161632]

約数ペア:

[(1, 21161632), (2, 10580816), (4, 5290408), (8, 2645204), (16, 1322602), (32, 661301), (37, 571936), (61, 346912), (74, 285968), (122, 173456), (148, 142984), (244, 86728), (293, 72224), (296, 71492), (488, 43364), (586, 36112), (592, 35746), (976, 21682), (1172, 18056), (1184, 17873), (1952, 10841), (2257, 9376), (2344, 9028), (4514, 4688)]