21722220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9283}}^1$

素因数の和:9311

約数の個数: 72

約数和(自身を含む): 70966896

約数和(自身を除く): 49244676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9283, 18566, 27849, 37132, 46415, 55698, 83547, 92830, 111396, 120679, 139245, 167094, 185660, 241358, 278490, 334188, 362037, 417735, 482716, 556980, 603395, 724074, 835470, 1086111, 1206790, 1448148, 1670940, 1810185, 2172222, 2413580, 3620370, 4344444, 5430555, 7240740, 10861110, 21722220]

約数ペア:

[(1, 21722220), (2, 10861110), (3, 7240740), (4, 5430555), (5, 4344444), (6, 3620370), (9, 2413580), (10, 2172222), (12, 1810185), (13, 1670940), (15, 1448148), (18, 1206790), (20, 1086111), (26, 835470), (30, 724074), (36, 603395), (39, 556980), (45, 482716), (52, 417735), (60, 362037), (65, 334188), (78, 278490), (90, 241358), (117, 185660), (130, 167094), (156, 139245), (180, 120679), (195, 111396), (234, 92830), (260, 83547), (390, 55698), (468, 46415), (585, 37132), (780, 27849), (1170, 18566), (2340, 9283)]