21371220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9133}}^1$

素因数の和:9161

約数の個数: 72

約数和(自身を含む): 69820296

約数和(自身を除く): 48449076

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, 9133, 18266, 27399, 36532, 45665, 54798, 82197, 91330, 109596, 118729, 136995, 164394, 182660, 237458, 273990, 328788, 356187, 410985, 474916, 547980, 593645, 712374, 821970, 1068561, 1187290, 1424748, 1643940, 1780935, 2137122, 2374580, 3561870, 4274244, 5342805, 7123740, 10685610, 21371220]

約数ペア:

[(1, 21371220), (2, 10685610), (3, 7123740), (4, 5342805), (5, 4274244), (6, 3561870), (9, 2374580), (10, 2137122), (12, 1780935), (13, 1643940), (15, 1424748), (18, 1187290), (20, 1068561), (26, 821970), (30, 712374), (36, 593645), (39, 547980), (45, 474916), (52, 410985), (60, 356187), (65, 328788), (78, 273990), (90, 237458), (117, 182660), (130, 164394), (156, 136995), (180, 118729), (195, 109596), (234, 91330), (260, 82197), (390, 54798), (468, 45665), (585, 36532), (780, 27399), (1170, 18266), (2340, 9133)]