21264256

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{983}}^1$

素因数の和:1023

約数の個数: 48

約数和(自身を含む): 45918360

約数和(自身を除く): 24654104

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 338, 416, 676, 832, 983, 1352, 1664, 1966, 2704, 3932, 5408, 7864, 10816, 12779, 15728, 21632, 25558, 31456, 51116, 62912, 102232, 125824, 166127, 204464, 332254, 408928, 664508, 817856, 1329016, 1635712, 2658032, 5316064, 10632128, 21264256]

約数ペア:

[(1, 21264256), (2, 10632128), (4, 5316064), (8, 2658032), (13, 1635712), (16, 1329016), (26, 817856), (32, 664508), (52, 408928), (64, 332254), (104, 204464), (128, 166127), (169, 125824), (208, 102232), (338, 62912), (416, 51116), (676, 31456), (832, 25558), (983, 21632), (1352, 15728), (1664, 12779), (1966, 10816), (2704, 7864), (3932, 5408)]