21440916

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:458

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 43071084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 79, 84, 108, 126, 158, 189, 237, 252, 316, 359, 378, 474, 553, 711, 718, 756, 948, 1077, 1106, 1422, 1436, 1659, 2133, 2154, 2212, 2513, 2844, 3231, 3318, 4266, 4308, 4977, 5026, 6462, 6636, 7539, 8532, 9693, 9954, 10052, 12924, 14931, 15078, 19386, 19908, 22617, 28361, 29862, 30156, 38772, 45234, 56722, 59724, 67851, 85083, 90468, 113444, 135702, 170166, 198527, 255249, 271404, 340332, 397054, 510498, 595581, 765747, 794108, 1020996, 1191162, 1531494, 1786743, 2382324, 3062988, 3573486, 5360229, 7146972, 10720458, 21440916]

約数ペア:

[(1, 21440916), (2, 10720458), (3, 7146972), (4, 5360229), (6, 3573486), (7, 3062988), (9, 2382324), (12, 1786743), (14, 1531494), (18, 1191162), (21, 1020996), (27, 794108), (28, 765747), (36, 595581), (42, 510498), (54, 397054), (63, 340332), (79, 271404), (84, 255249), (108, 198527), (126, 170166), (158, 135702), (189, 113444), (237, 90468), (252, 85083), (316, 67851), (359, 59724), (378, 56722), (474, 45234), (553, 38772), (711, 30156), (718, 29862), (756, 28361), (948, 22617), (1077, 19908), (1106, 19386), (1422, 15078), (1436, 14931), (1659, 12924), (2133, 10052), (2154, 9954), (2212, 9693), (2513, 8532), (2844, 7539), (3231, 6636), (3318, 6462), (4266, 5026), (4308, 4977)]