21245880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3767}}^1$

素因数の和:3828

約数の個数: 64

約数和(自身を含む): 65111040

約数和(自身を除く): 43865160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3767, 5640, 7534, 11301, 15068, 18835, 22602, 30136, 37670, 45204, 56505, 75340, 90408, 113010, 150680, 177049, 226020, 354098, 452040, 531147, 708196, 885245, 1062294, 1416392, 1770490, 2124588, 2655735, 3540980, 4249176, 5311470, 7081960, 10622940, 21245880]

約数ペア:

[(1, 21245880), (2, 10622940), (3, 7081960), (4, 5311470), (5, 4249176), (6, 3540980), (8, 2655735), (10, 2124588), (12, 1770490), (15, 1416392), (20, 1062294), (24, 885245), (30, 708196), (40, 531147), (47, 452040), (60, 354098), (94, 226020), (120, 177049), (141, 150680), (188, 113010), (235, 90408), (282, 75340), (376, 56505), (470, 45204), (564, 37670), (705, 30136), (940, 22602), (1128, 18835), (1410, 15068), (1880, 11301), (2820, 7534), (3767, 5640)]