21756126

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{79}}^2\times {\mathrm{83}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 50972544

約数和(自身を除く): 29216418

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 79, 83, 158, 166, 237, 249, 474, 498, 553, 581, 1106, 1162, 1659, 1743, 3318, 3486, 6241, 6557, 12482, 13114, 18723, 19671, 37446, 39342, 43687, 45899, 87374, 91798, 131061, 137697, 262122, 275394, 518003, 1036006, 1554009, 3108018, 3626021, 7252042, 10878063, 21756126]

約数ペア:

[(1, 21756126), (2, 10878063), (3, 7252042), (6, 3626021), (7, 3108018), (14, 1554009), (21, 1036006), (42, 518003), (79, 275394), (83, 262122), (158, 137697), (166, 131061), (237, 91798), (249, 87374), (474, 45899), (498, 43687), (553, 39342), (581, 37446), (1106, 19671), (1162, 18723), (1659, 13114), (1743, 12482), (3318, 6557), (3486, 6241)]