21152803490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{40709}}^1$

素因数の和:41307

約数の個数: 64

約数和(自身を含む): 46944817920

約数和(自身を除く): 25792014430

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 571, 910, 1142, 2855, 3997, 5710, 7423, 7994, 14846, 19985, 37115, 39970, 40709, 51961, 74230, 81418, 103922, 203545, 259805, 284963, 407090, 519610, 529217, 569926, 1058434, 1424815, 2646085, 2849630, 3704519, 5292170, 7409038, 18522595, 23244839, 37045190, 46489678, 116224195, 162713873, 232448390, 302182907, 325427746, 604365814, 813569365, 1510914535, 1627138730, 2115280349, 3021829070, 4230560698, 10576401745, 21152803490]

約数ペア:

[(1, 21152803490), (2, 10576401745), (5, 4230560698), (7, 3021829070), (10, 2115280349), (13, 1627138730), (14, 1510914535), (26, 813569365), (35, 604365814), (65, 325427746), (70, 302182907), (91, 232448390), (130, 162713873), (182, 116224195), (455, 46489678), (571, 37045190), (910, 23244839), (1142, 18522595), (2855, 7409038), (3997, 5292170), (5710, 3704519), (7423, 2849630), (7994, 2646085), (14846, 1424815), (19985, 1058434), (37115, 569926), (39970, 529217), (40709, 519610), (51961, 407090), (74230, 284963), (81418, 259805), (103922, 203545)]