21236712

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1523}}^1$

素因数の和:1622

約数の個数: 64

約数和(自身を含む): 61447680

約数和(自身を除く): 40210968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 83, 84, 166, 168, 249, 332, 498, 581, 664, 996, 1162, 1523, 1743, 1992, 2324, 3046, 3486, 4569, 4648, 6092, 6972, 9138, 10661, 12184, 13944, 18276, 21322, 31983, 36552, 42644, 63966, 85288, 126409, 127932, 252818, 255864, 379227, 505636, 758454, 884863, 1011272, 1516908, 1769726, 2654589, 3033816, 3539452, 5309178, 7078904, 10618356, 21236712]

約数ペア:

[(1, 21236712), (2, 10618356), (3, 7078904), (4, 5309178), (6, 3539452), (7, 3033816), (8, 2654589), (12, 1769726), (14, 1516908), (21, 1011272), (24, 884863), (28, 758454), (42, 505636), (56, 379227), (83, 255864), (84, 252818), (166, 127932), (168, 126409), (249, 85288), (332, 63966), (498, 42644), (581, 36552), (664, 31983), (996, 21322), (1162, 18276), (1523, 13944), (1743, 12184), (1992, 10661), (2324, 9138), (3046, 6972), (3486, 6092), (4569, 4648)]