21874996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 45440640

約数和(自身を除く): 23565644

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 167, 229, 286, 334, 458, 572, 668, 916, 1837, 2171, 2519, 2977, 3674, 4342, 5038, 5954, 7348, 8684, 10076, 11908, 23881, 32747, 38243, 47762, 65494, 76486, 95524, 130988, 152972, 420673, 497159, 841346, 994318, 1682692, 1988636, 5468749, 10937498, 21874996]

約数ペア:

[(1, 21874996), (2, 10937498), (4, 5468749), (11, 1988636), (13, 1682692), (22, 994318), (26, 841346), (44, 497159), (52, 420673), (143, 152972), (167, 130988), (229, 95524), (286, 76486), (334, 65494), (458, 47762), (572, 38243), (668, 32747), (916, 23881), (1837, 11908), (2171, 10076), (2519, 8684), (2977, 7348), (3674, 5954), (4342, 5038)]