21969220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12071}}^1$

素因数の和:12100

約数の個数: 48

約数和(自身を含む): 56786688

約数和(自身を除く): 34817468

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 12071, 24142, 48284, 60355, 84497, 120710, 156923, 168994, 241420, 313846, 337988, 422485, 627692, 784615, 844970, 1098461, 1569230, 1689940, 2196922, 3138460, 4393844, 5492305, 10984610, 21969220]

約数ペア:

[(1, 21969220), (2, 10984610), (4, 5492305), (5, 4393844), (7, 3138460), (10, 2196922), (13, 1689940), (14, 1569230), (20, 1098461), (26, 844970), (28, 784615), (35, 627692), (52, 422485), (65, 337988), (70, 313846), (91, 241420), (130, 168994), (140, 156923), (182, 120710), (260, 84497), (364, 60355), (455, 48284), (910, 24142), (1820, 12071)]