21486960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2713}}^1$

素因数の和:2743

約数の個数: 120

約数和(自身を含む): 78749424

約数和(自身を除く): 57262464

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2713, 3960, 5426, 7920, 8139, 10852, 13565, 16278, 21704, 24417, 27130, 29843, 32556, 40695, 43408, 48834, 54260, 59686, 65112, 81390, 89529, 97668, 108520, 119372, 122085, 130224, 149215, 162780, 179058, 195336, 217040, 238744, 244170, 268587, 298430, 325560, 358116, 390672, 447645, 477488, 488340, 537174, 596860, 651120, 716232, 895290, 976680, 1074348, 1193720, 1342935, 1432464, 1790580, 1953360, 2148696, 2387440, 2685870, 3581160, 4297392, 5371740, 7162320, 10743480, 21486960]

約数ペア:

[(1, 21486960), (2, 10743480), (3, 7162320), (4, 5371740), (5, 4297392), (6, 3581160), (8, 2685870), (9, 2387440), (10, 2148696), (11, 1953360), (12, 1790580), (15, 1432464), (16, 1342935), (18, 1193720), (20, 1074348), (22, 976680), (24, 895290), (30, 716232), (33, 651120), (36, 596860), (40, 537174), (44, 488340), (45, 477488), (48, 447645), (55, 390672), (60, 358116), (66, 325560), (72, 298430), (80, 268587), (88, 244170), (90, 238744), (99, 217040), (110, 195336), (120, 179058), (132, 162780), (144, 149215), (165, 130224), (176, 122085), (180, 119372), (198, 108520), (220, 97668), (240, 89529), (264, 81390), (330, 65112), (360, 59686), (396, 54260), (440, 48834), (495, 43408), (528, 40695), (660, 32556), (720, 29843), (792, 27130), (880, 24417), (990, 21704), (1320, 16278), (1584, 13565), (1980, 10852), (2640, 8139), (2713, 7920), (3960, 5426)]