21223320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 67184640

約数和(自身を除く): 45961320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 53, 60, 71, 94, 106, 120, 141, 142, 159, 188, 212, 213, 235, 265, 282, 284, 318, 355, 376, 424, 426, 470, 530, 564, 568, 636, 705, 710, 795, 852, 940, 1060, 1065, 1128, 1272, 1410, 1420, 1590, 1704, 1880, 2120, 2130, 2491, 2820, 2840, 3180, 3337, 3763, 4260, 4982, 5640, 6360, 6674, 7473, 7526, 8520, 9964, 10011, 11289, 12455, 13348, 14946, 15052, 16685, 18815, 19928, 20022, 22578, 24910, 26696, 29892, 30104, 33370, 37365, 37630, 40044, 45156, 49820, 50055, 56445, 59784, 66740, 74730, 75260, 80088, 90312, 99640, 100110, 112890, 133480, 149460, 150520, 176861, 200220, 225780, 298920, 353722, 400440, 451560, 530583, 707444, 884305, 1061166, 1414888, 1768610, 2122332, 2652915, 3537220, 4244664, 5305830, 7074440, 10611660, 21223320]

約数ペア:

[(1, 21223320), (2, 10611660), (3, 7074440), (4, 5305830), (5, 4244664), (6, 3537220), (8, 2652915), (10, 2122332), (12, 1768610), (15, 1414888), (20, 1061166), (24, 884305), (30, 707444), (40, 530583), (47, 451560), (53, 400440), (60, 353722), (71, 298920), (94, 225780), (106, 200220), (120, 176861), (141, 150520), (142, 149460), (159, 133480), (188, 112890), (212, 100110), (213, 99640), (235, 90312), (265, 80088), (282, 75260), (284, 74730), (318, 66740), (355, 59784), (376, 56445), (424, 50055), (426, 49820), (470, 45156), (530, 40044), (564, 37630), (568, 37365), (636, 33370), (705, 30104), (710, 29892), (795, 26696), (852, 24910), (940, 22578), (1060, 20022), (1065, 19928), (1128, 18815), (1272, 16685), (1410, 15052), (1420, 14946), (1590, 13348), (1704, 12455), (1880, 11289), (2120, 10011), (2130, 9964), (2491, 8520), (2820, 7526), (2840, 7473), (3180, 6674), (3337, 6360), (3763, 5640), (4260, 4982)]