21654768

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 58523040

約数和(自身を除く): 36868272

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 89, 111, 137, 148, 178, 222, 267, 274, 296, 356, 411, 444, 534, 548, 592, 712, 822, 888, 1068, 1096, 1424, 1644, 1776, 2136, 2192, 3288, 3293, 4272, 5069, 6576, 6586, 9879, 10138, 12193, 13172, 15207, 19758, 20276, 24386, 26344, 30414, 36579, 39516, 40552, 48772, 52688, 60828, 73158, 79032, 81104, 97544, 121656, 146316, 158064, 195088, 243312, 292632, 451141, 585264, 902282, 1353423, 1804564, 2706846, 3609128, 5413692, 7218256, 10827384, 21654768]

約数ペア:

[(1, 21654768), (2, 10827384), (3, 7218256), (4, 5413692), (6, 3609128), (8, 2706846), (12, 1804564), (16, 1353423), (24, 902282), (37, 585264), (48, 451141), (74, 292632), (89, 243312), (111, 195088), (137, 158064), (148, 146316), (178, 121656), (222, 97544), (267, 81104), (274, 79032), (296, 73158), (356, 60828), (411, 52688), (444, 48772), (534, 40552), (548, 39516), (592, 36579), (712, 30414), (822, 26344), (888, 24386), (1068, 20276), (1096, 19758), (1424, 15207), (1644, 13172), (1776, 12193), (2136, 10138), (2192, 9879), (3288, 6586), (3293, 6576), (4272, 5069)]