21049203812

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{92821}}^1$

素因数の和:92941

約数の個数: 72

約数和(自身を含む): 46665332280

約数和(自身を除く): 25616128468

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 89, 91, 98, 178, 182, 196, 356, 364, 623, 637, 1157, 1246, 1274, 2314, 2492, 2548, 4361, 4628, 8099, 8722, 16198, 17444, 32396, 56693, 92821, 113386, 185642, 226772, 371284, 649747, 1206673, 1299494, 2413346, 2598988, 4548229, 4826692, 8261069, 8446711, 9096458, 16522138, 16893422, 18192916, 33044276, 33786844, 57827483, 59126977, 107393897, 115654966, 118253954, 214787794, 231309932, 236507908, 404792381, 429575588, 751757279, 809584762, 1503514558, 1619169524, 3007029116, 5262300953, 10524601906, 21049203812]

約数ペア:

[(1, 21049203812), (2, 10524601906), (4, 5262300953), (7, 3007029116), (13, 1619169524), (14, 1503514558), (26, 809584762), (28, 751757279), (49, 429575588), (52, 404792381), (89, 236507908), (91, 231309932), (98, 214787794), (178, 118253954), (182, 115654966), (196, 107393897), (356, 59126977), (364, 57827483), (623, 33786844), (637, 33044276), (1157, 18192916), (1246, 16893422), (1274, 16522138), (2314, 9096458), (2492, 8446711), (2548, 8261069), (4361, 4826692), (4628, 4548229), (8099, 2598988), (8722, 2413346), (16198, 1299494), (17444, 1206673), (32396, 649747), (56693, 371284), (92821, 226772), (113386, 185642)]