21856680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:683

約数の個数: 96

約数和(自身を含む): 71814600

約数和(自身を除く): 49957920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 109, 120, 180, 218, 327, 360, 436, 545, 557, 654, 872, 981, 1090, 1114, 1308, 1635, 1671, 1962, 2180, 2228, 2616, 2785, 3270, 3342, 3924, 4360, 4456, 4905, 5013, 5570, 6540, 6684, 7848, 8355, 9810, 10026, 11140, 13080, 13368, 16710, 19620, 20052, 22280, 25065, 33420, 39240, 40104, 50130, 60713, 66840, 100260, 121426, 182139, 200520, 242852, 303565, 364278, 485704, 546417, 607130, 728556, 910695, 1092834, 1214260, 1457112, 1821390, 2185668, 2428520, 2732085, 3642780, 4371336, 5464170, 7285560, 10928340, 21856680]

約数ペア:

[(1, 21856680), (2, 10928340), (3, 7285560), (4, 5464170), (5, 4371336), (6, 3642780), (8, 2732085), (9, 2428520), (10, 2185668), (12, 1821390), (15, 1457112), (18, 1214260), (20, 1092834), (24, 910695), (30, 728556), (36, 607130), (40, 546417), (45, 485704), (60, 364278), (72, 303565), (90, 242852), (109, 200520), (120, 182139), (180, 121426), (218, 100260), (327, 66840), (360, 60713), (436, 50130), (545, 40104), (557, 39240), (654, 33420), (872, 25065), (981, 22280), (1090, 20052), (1114, 19620), (1308, 16710), (1635, 13368), (1671, 13080), (1962, 11140), (2180, 10026), (2228, 9810), (2616, 8355), (2785, 7848), (3270, 6684), (3342, 6540), (3924, 5570), (4360, 5013), (4456, 4905)]