21536538

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 46488096

約数和(自身を除く): 24951558

約数列:

[1, 2, 3, 6, 19, 38, 57, 61, 114, 122, 163, 183, 326, 361, 366, 489, 722, 978, 1083, 1159, 2166, 2318, 3097, 3477, 6194, 6954, 9291, 9943, 18582, 19886, 22021, 29829, 44042, 58843, 59658, 66063, 117686, 132126, 176529, 188917, 353058, 377834, 566751, 1133502, 3589423, 7178846, 10768269, 21536538]

約数ペア:

[(1, 21536538), (2, 10768269), (3, 7178846), (6, 3589423), (19, 1133502), (38, 566751), (57, 377834), (61, 353058), (114, 188917), (122, 176529), (163, 132126), (183, 117686), (326, 66063), (361, 59658), (366, 58843), (489, 44042), (722, 29829), (978, 22021), (1083, 19886), (1159, 18582), (2166, 9943), (2318, 9291), (3097, 6954), (3477, 6194)]