21041808

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:300

約数の個数: 80

約数和(自身を含む): 57139200

約数和(自身を除く): 36097392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 79, 93, 124, 158, 179, 186, 237, 248, 316, 358, 372, 474, 496, 537, 632, 716, 744, 948, 1074, 1264, 1432, 1488, 1896, 2148, 2449, 2864, 3792, 4296, 4898, 5549, 7347, 8592, 9796, 11098, 14141, 14694, 16647, 19592, 22196, 28282, 29388, 33294, 39184, 42423, 44392, 56564, 58776, 66588, 84846, 88784, 113128, 117552, 133176, 169692, 226256, 266352, 339384, 438371, 678768, 876742, 1315113, 1753484, 2630226, 3506968, 5260452, 7013936, 10520904, 21041808]

約数ペア:

[(1, 21041808), (2, 10520904), (3, 7013936), (4, 5260452), (6, 3506968), (8, 2630226), (12, 1753484), (16, 1315113), (24, 876742), (31, 678768), (48, 438371), (62, 339384), (79, 266352), (93, 226256), (124, 169692), (158, 133176), (179, 117552), (186, 113128), (237, 88784), (248, 84846), (316, 66588), (358, 58776), (372, 56564), (474, 44392), (496, 42423), (537, 39184), (632, 33294), (716, 29388), (744, 28282), (948, 22196), (1074, 19592), (1264, 16647), (1432, 14694), (1488, 14141), (1896, 11098), (2148, 9796), (2449, 8592), (2864, 7347), (3792, 5549), (4296, 4898)]