21167389460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{523}}^1\times {\mathrm{41299}}^1$

素因数の和:41845

約数の個数: 72

約数和(自身を含む): 51809032800

約数和(自身を除く): 30641643340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 523, 980, 1046, 2092, 2615, 3661, 5230, 7322, 10460, 14644, 18305, 25627, 36610, 41299, 51254, 73220, 82598, 102508, 128135, 165196, 206495, 256270, 289093, 412990, 512540, 578186, 825980, 1156372, 1445465, 2023651, 2890930, 4047302, 5781860, 8094604, 10118255, 20236510, 21599377, 40473020, 43198754, 86397508, 107996885, 151195639, 215993770, 302391278, 431987540, 604782556, 755978195, 1058369473, 1511956390, 2116738946, 3023912780, 4233477892, 5291847365, 10583694730, 21167389460]

約数ペア:

[(1, 21167389460), (2, 10583694730), (4, 5291847365), (5, 4233477892), (7, 3023912780), (10, 2116738946), (14, 1511956390), (20, 1058369473), (28, 755978195), (35, 604782556), (49, 431987540), (70, 302391278), (98, 215993770), (140, 151195639), (196, 107996885), (245, 86397508), (490, 43198754), (523, 40473020), (980, 21599377), (1046, 20236510), (2092, 10118255), (2615, 8094604), (3661, 5781860), (5230, 4047302), (7322, 2890930), (10460, 2023651), (14644, 1445465), (18305, 1156372), (25627, 825980), (36610, 578186), (41299, 512540), (51254, 412990), (73220, 289093), (82598, 256270), (102508, 206495), (128135, 165196)]