21321888

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31729}}^1$

素因数の和:31749

約数の個数: 48

約数和(自身を含む): 63967680

約数和(自身を除く): 42645792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31729, 63458, 95187, 126916, 190374, 222103, 253832, 380748, 444206, 507664, 666309, 761496, 888412, 1015328, 1332618, 1522992, 1776824, 2665236, 3045984, 3553648, 5330472, 7107296, 10660944, 21321888]

約数ペア:

[(1, 21321888), (2, 10660944), (3, 7107296), (4, 5330472), (6, 3553648), (7, 3045984), (8, 2665236), (12, 1776824), (14, 1522992), (16, 1332618), (21, 1015328), (24, 888412), (28, 761496), (32, 666309), (42, 507664), (48, 444206), (56, 380748), (84, 253832), (96, 222103), (112, 190374), (168, 126916), (224, 95187), (336, 63458), (672, 31729)]