20804904

素因数分解:

$2^3\times 3^3\times {\mathrm{61}}^1\times {\mathrm{1579}}^1$

素因数の和:1655

約数の個数: 64

約数和(自身を含む): 58776000

約数和(自身を除く): 37971096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 108, 122, 183, 216, 244, 366, 488, 549, 732, 1098, 1464, 1579, 1647, 2196, 3158, 3294, 4392, 4737, 6316, 6588, 9474, 12632, 13176, 14211, 18948, 28422, 37896, 42633, 56844, 85266, 96319, 113688, 170532, 192638, 288957, 341064, 385276, 577914, 770552, 866871, 1155828, 1733742, 2311656, 2600613, 3467484, 5201226, 6934968, 10402452, 20804904]

約数ペア:

[(1, 20804904), (2, 10402452), (3, 6934968), (4, 5201226), (6, 3467484), (8, 2600613), (9, 2311656), (12, 1733742), (18, 1155828), (24, 866871), (27, 770552), (36, 577914), (54, 385276), (61, 341064), (72, 288957), (108, 192638), (122, 170532), (183, 113688), (216, 96319), (244, 85266), (366, 56844), (488, 42633), (549, 37896), (732, 28422), (1098, 18948), (1464, 14211), (1579, 13176), (1647, 12632), (2196, 9474), (3158, 6588), (3294, 6316), (4392, 4737)]