21221856

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{2377}}^1$

素因数の和:2424

約数の個数: 72

約数和(自身を含む): 62322624

約数和(自身を除く): 41100768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1488, 2232, 2377, 2976, 4464, 4754, 7131, 8928, 9508, 14262, 19016, 21393, 28524, 38032, 42786, 57048, 73687, 76064, 85572, 114096, 147374, 171144, 221061, 228192, 294748, 342288, 442122, 589496, 663183, 684576, 884244, 1178992, 1326366, 1768488, 2357984, 2652732, 3536976, 5305464, 7073952, 10610928, 21221856]

約数ペア:

[(1, 21221856), (2, 10610928), (3, 7073952), (4, 5305464), (6, 3536976), (8, 2652732), (9, 2357984), (12, 1768488), (16, 1326366), (18, 1178992), (24, 884244), (31, 684576), (32, 663183), (36, 589496), (48, 442122), (62, 342288), (72, 294748), (93, 228192), (96, 221061), (124, 171144), (144, 147374), (186, 114096), (248, 85572), (279, 76064), (288, 73687), (372, 57048), (496, 42786), (558, 38032), (744, 28524), (992, 21393), (1116, 19016), (1488, 14262), (2232, 9508), (2377, 8928), (2976, 7131), (4464, 4754)]