21475740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2503}}^1$

素因数の和:2539

約数の個数: 96

約数和(自身を含む): 70672896

約数和(自身を除く): 49197156

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2503, 2860, 4290, 5006, 7509, 8580, 10012, 12515, 15018, 25030, 27533, 30036, 32539, 37545, 50060, 55066, 65078, 75090, 82599, 97617, 110132, 130156, 137665, 150180, 162695, 165198, 195234, 275330, 325390, 330396, 357929, 390468, 412995, 488085, 550660, 650780, 715858, 825990, 976170, 1073787, 1431716, 1651980, 1789645, 1952340, 2147574, 3579290, 4295148, 5368935, 7158580, 10737870, 21475740]

約数ペア:

[(1, 21475740), (2, 10737870), (3, 7158580), (4, 5368935), (5, 4295148), (6, 3579290), (10, 2147574), (11, 1952340), (12, 1789645), (13, 1651980), (15, 1431716), (20, 1073787), (22, 976170), (26, 825990), (30, 715858), (33, 650780), (39, 550660), (44, 488085), (52, 412995), (55, 390468), (60, 357929), (65, 330396), (66, 325390), (78, 275330), (110, 195234), (130, 165198), (132, 162695), (143, 150180), (156, 137665), (165, 130156), (195, 110132), (220, 97617), (260, 82599), (286, 75090), (330, 65078), (390, 55066), (429, 50060), (572, 37545), (660, 32539), (715, 30036), (780, 27533), (858, 25030), (1430, 15018), (1716, 12515), (2145, 10012), (2503, 8580), (2860, 7509), (4290, 5006)]