21012110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 46669824

約数和(自身を除く): 25657714

約数列:

[1, 2, 5, 7, 10, 14, 23, 31, 35, 46, 62, 70, 115, 155, 161, 217, 230, 310, 322, 421, 434, 713, 805, 842, 1085, 1426, 1610, 2105, 2170, 2947, 3565, 4210, 4991, 5894, 7130, 9683, 9982, 13051, 14735, 19366, 24955, 26102, 29470, 48415, 49910, 65255, 67781, 91357, 96830, 130510, 135562, 182714, 300173, 338905, 456785, 600346, 677810, 913570, 1500865, 2101211, 3001730, 4202422, 10506055, 21012110]

約数ペア:

[(1, 21012110), (2, 10506055), (5, 4202422), (7, 3001730), (10, 2101211), (14, 1500865), (23, 913570), (31, 677810), (35, 600346), (46, 456785), (62, 338905), (70, 300173), (115, 182714), (155, 135562), (161, 130510), (217, 96830), (230, 91357), (310, 67781), (322, 65255), (421, 49910), (434, 48415), (713, 29470), (805, 26102), (842, 24955), (1085, 19366), (1426, 14735), (1610, 13051), (2105, 9982), (2170, 9683), (2947, 7130), (3565, 5894), (4210, 4991)]