21405324

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 52935680

約数和(自身を除く): 31530356

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 223, 228, 421, 446, 669, 842, 892, 1263, 1338, 1684, 2526, 2676, 4237, 5052, 7999, 8474, 12711, 15998, 16948, 23997, 25422, 31996, 47994, 50844, 93883, 95988, 187766, 281649, 375532, 563298, 1126596, 1783777, 3567554, 5351331, 7135108, 10702662, 21405324]

約数ペア:

[(1, 21405324), (2, 10702662), (3, 7135108), (4, 5351331), (6, 3567554), (12, 1783777), (19, 1126596), (38, 563298), (57, 375532), (76, 281649), (114, 187766), (223, 95988), (228, 93883), (421, 50844), (446, 47994), (669, 31996), (842, 25422), (892, 23997), (1263, 16948), (1338, 15998), (1684, 12711), (2526, 8474), (2676, 7999), (4237, 5052)]