21545940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1201}}^1$

素因数の和:1249

約数の個数: 96

約数和(自身を含む): 67850496

約数和(自身を除く): 46304556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1196, 1201, 1380, 1495, 1794, 2402, 2990, 3588, 3603, 4485, 4804, 5980, 6005, 7206, 8970, 12010, 14412, 15613, 17940, 18015, 24020, 27623, 31226, 36030, 46839, 55246, 62452, 72060, 78065, 82869, 93678, 110492, 138115, 156130, 165738, 187356, 234195, 276230, 312260, 331476, 359099, 414345, 468390, 552460, 718198, 828690, 936780, 1077297, 1436396, 1657380, 1795495, 2154594, 3590990, 4309188, 5386485, 7181980, 10772970, 21545940]

約数ペア:

[(1, 21545940), (2, 10772970), (3, 7181980), (4, 5386485), (5, 4309188), (6, 3590990), (10, 2154594), (12, 1795495), (13, 1657380), (15, 1436396), (20, 1077297), (23, 936780), (26, 828690), (30, 718198), (39, 552460), (46, 468390), (52, 414345), (60, 359099), (65, 331476), (69, 312260), (78, 276230), (92, 234195), (115, 187356), (130, 165738), (138, 156130), (156, 138115), (195, 110492), (230, 93678), (260, 82869), (276, 78065), (299, 72060), (345, 62452), (390, 55246), (460, 46839), (598, 36030), (690, 31226), (780, 27623), (897, 24020), (1196, 18015), (1201, 17940), (1380, 15613), (1495, 14412), (1794, 12010), (2402, 8970), (2990, 7206), (3588, 6005), (3603, 5980), (4485, 4804)]