21103528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8167}}^1$

素因数の和:8209

約数の個数: 32

約数和(自身を含む): 44107200

約数和(自身を除く): 23003672

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8167, 16334, 32668, 65336, 138839, 155173, 277678, 310346, 555356, 620692, 1110712, 1241384, 2637941, 5275882, 10551764, 21103528]

約数ペア:

[(1, 21103528), (2, 10551764), (4, 5275882), (8, 2637941), (17, 1241384), (19, 1110712), (34, 620692), (38, 555356), (68, 310346), (76, 277678), (136, 155173), (152, 138839), (323, 65336), (646, 32668), (1292, 16334), (2584, 8167)]