21549960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1979

約数の個数: 96

約数和(自身を含む): 72334080

約数和(自身を除く): 50784120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 1931, 2232, 2790, 3720, 3862, 5580, 5793, 7724, 9655, 11160, 11586, 15448, 17379, 19310, 23172, 28965, 34758, 38620, 46344, 57930, 59861, 69516, 77240, 86895, 115860, 119722, 139032, 173790, 179583, 231720, 239444, 299305, 347580, 359166, 478888, 538749, 598610, 695160, 718332, 897915, 1077498, 1197220, 1436664, 1795830, 2154996, 2394440, 2693745, 3591660, 4309992, 5387490, 7183320, 10774980, 21549960]

約数ペア:

[(1, 21549960), (2, 10774980), (3, 7183320), (4, 5387490), (5, 4309992), (6, 3591660), (8, 2693745), (9, 2394440), (10, 2154996), (12, 1795830), (15, 1436664), (18, 1197220), (20, 1077498), (24, 897915), (30, 718332), (31, 695160), (36, 598610), (40, 538749), (45, 478888), (60, 359166), (62, 347580), (72, 299305), (90, 239444), (93, 231720), (120, 179583), (124, 173790), (155, 139032), (180, 119722), (186, 115860), (248, 86895), (279, 77240), (310, 69516), (360, 59861), (372, 57930), (465, 46344), (558, 38620), (620, 34758), (744, 28965), (930, 23172), (1116, 19310), (1240, 17379), (1395, 15448), (1860, 11586), (1931, 11160), (2232, 9655), (2790, 7724), (3720, 5793), (3862, 5580)]