21053296

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 47327328

約数和(自身を除く): 26274032

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 53, 61, 74, 88, 106, 122, 148, 176, 212, 244, 296, 407, 424, 488, 583, 592, 671, 814, 848, 976, 1166, 1342, 1628, 1961, 2257, 2332, 2684, 3233, 3256, 3922, 4514, 4664, 5368, 6466, 6512, 7844, 9028, 9328, 10736, 12932, 15688, 18056, 21571, 24827, 25864, 31376, 35563, 36112, 43142, 49654, 51728, 71126, 86284, 99308, 119621, 142252, 172568, 198616, 239242, 284504, 345136, 397232, 478484, 569008, 956968, 1315831, 1913936, 2631662, 5263324, 10526648, 21053296]

約数ペア:

[(1, 21053296), (2, 10526648), (4, 5263324), (8, 2631662), (11, 1913936), (16, 1315831), (22, 956968), (37, 569008), (44, 478484), (53, 397232), (61, 345136), (74, 284504), (88, 239242), (106, 198616), (122, 172568), (148, 142252), (176, 119621), (212, 99308), (244, 86284), (296, 71126), (407, 51728), (424, 49654), (488, 43142), (583, 36112), (592, 35563), (671, 31376), (814, 25864), (848, 24827), (976, 21571), (1166, 18056), (1342, 15688), (1628, 12932), (1961, 10736), (2257, 9328), (2332, 9028), (2684, 7844), (3233, 6512), (3256, 6466), (3922, 5368), (4514, 4664)]