21577140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9221}}^1$

素因数の和:9249

約数の個数: 72

約数和(自身を含む): 70492968

約数和(自身を除く): 48915828

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, 9221, 18442, 27663, 36884, 46105, 55326, 82989, 92210, 110652, 119873, 138315, 165978, 184420, 239746, 276630, 331956, 359619, 414945, 479492, 553260, 599365, 719238, 829890, 1078857, 1198730, 1438476, 1659780, 1798095, 2157714, 2397460, 3596190, 4315428, 5394285, 7192380, 10788570, 21577140]

約数ペア:

[(1, 21577140), (2, 10788570), (3, 7192380), (4, 5394285), (5, 4315428), (6, 3596190), (9, 2397460), (10, 2157714), (12, 1798095), (13, 1659780), (15, 1438476), (18, 1198730), (20, 1078857), (26, 829890), (30, 719238), (36, 599365), (39, 553260), (45, 479492), (52, 414945), (60, 359619), (65, 331956), (78, 276630), (90, 239746), (117, 184420), (130, 165978), (156, 138315), (180, 119873), (195, 110652), (234, 92210), (260, 82989), (390, 55326), (468, 46105), (585, 36884), (780, 27663), (1170, 18442), (2340, 9221)]