21635676

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^2\times {\mathrm{439}}^1$

素因数の和:523

約数の個数: 54

約数和(自身を含む): 56336280

約数和(自身を除く): 34700604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 439, 444, 666, 878, 1317, 1332, 1369, 1756, 2634, 2738, 3951, 4107, 5268, 5476, 7902, 8214, 12321, 15804, 16243, 16428, 24642, 32486, 48729, 49284, 64972, 97458, 146187, 194916, 292374, 584748, 600991, 1201982, 1802973, 2403964, 3605946, 5408919, 7211892, 10817838, 21635676]

約数ペア:

[(1, 21635676), (2, 10817838), (3, 7211892), (4, 5408919), (6, 3605946), (9, 2403964), (12, 1802973), (18, 1201982), (36, 600991), (37, 584748), (74, 292374), (111, 194916), (148, 146187), (222, 97458), (333, 64972), (439, 49284), (444, 48729), (666, 32486), (878, 24642), (1317, 16428), (1332, 16243), (1369, 15804), (1756, 12321), (2634, 8214), (2738, 7902), (3951, 5476), (4107, 5268)]