20973376

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:587

約数の個数: 56

約数和(自身を含む): 45345096

約数和(自身を除く): 24371720

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 136, 148, 272, 296, 521, 544, 592, 629, 1042, 1088, 1184, 1258, 2084, 2368, 2516, 4168, 5032, 8336, 8857, 10064, 16672, 17714, 19277, 20128, 33344, 35428, 38554, 40256, 70856, 77108, 141712, 154216, 283424, 308432, 327709, 566848, 616864, 655418, 1233728, 1310836, 2621672, 5243344, 10486688, 20973376]

約数ペア:

[(1, 20973376), (2, 10486688), (4, 5243344), (8, 2621672), (16, 1310836), (17, 1233728), (32, 655418), (34, 616864), (37, 566848), (64, 327709), (68, 308432), (74, 283424), (136, 154216), (148, 141712), (272, 77108), (296, 70856), (521, 40256), (544, 38554), (592, 35428), (629, 33344), (1042, 20128), (1088, 19277), (1184, 17714), (1258, 16672), (2084, 10064), (2368, 8857), (2516, 8336), (4168, 5032)]