21605808

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{64303}}^1$

素因数の和:64321

約数の個数: 40

約数和(自身を含む): 63789568

約数和(自身を除く): 42183760

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 64303, 128606, 192909, 257212, 385818, 450121, 514424, 771636, 900242, 1028848, 1350363, 1543272, 1800484, 2700726, 3086544, 3600968, 5401452, 7201936, 10802904, 21605808]

約数ペア:

[(1, 21605808), (2, 10802904), (3, 7201936), (4, 5401452), (6, 3600968), (7, 3086544), (8, 2700726), (12, 1800484), (14, 1543272), (16, 1350363), (21, 1028848), (24, 900242), (28, 771636), (42, 514424), (48, 450121), (56, 385818), (84, 257212), (112, 192909), (168, 128606), (336, 64303)]