21504120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1481}}^1$

素因数の和:1517

約数の個数: 96

約数和(自身を含む): 70958160

約数和(自身を除く): 49454040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 121, 132, 165, 220, 242, 264, 330, 363, 440, 484, 605, 660, 726, 968, 1210, 1320, 1452, 1481, 1815, 2420, 2904, 2962, 3630, 4443, 4840, 5924, 7260, 7405, 8886, 11848, 14520, 14810, 16291, 17772, 22215, 29620, 32582, 35544, 44430, 48873, 59240, 65164, 81455, 88860, 97746, 130328, 162910, 177720, 179201, 195492, 244365, 325820, 358402, 390984, 488730, 537603, 651640, 716804, 896005, 977460, 1075206, 1433608, 1792010, 1954920, 2150412, 2688015, 3584020, 4300824, 5376030, 7168040, 10752060, 21504120]

約数ペア:

[(1, 21504120), (2, 10752060), (3, 7168040), (4, 5376030), (5, 4300824), (6, 3584020), (8, 2688015), (10, 2150412), (11, 1954920), (12, 1792010), (15, 1433608), (20, 1075206), (22, 977460), (24, 896005), (30, 716804), (33, 651640), (40, 537603), (44, 488730), (55, 390984), (60, 358402), (66, 325820), (88, 244365), (110, 195492), (120, 179201), (121, 177720), (132, 162910), (165, 130328), (220, 97746), (242, 88860), (264, 81455), (330, 65164), (363, 59240), (440, 48873), (484, 44430), (605, 35544), (660, 32582), (726, 29620), (968, 22215), (1210, 17772), (1320, 16291), (1452, 14810), (1481, 14520), (1815, 11848), (2420, 8886), (2904, 7405), (2962, 7260), (3630, 5924), (4443, 4840)]