21067620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{487}}^1$

素因数の和:609

約数の個数: 96

約数和(自身を含む): 68210688

約数和(自身を除く): 47143068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 103, 105, 140, 206, 210, 309, 412, 420, 487, 515, 618, 721, 974, 1030, 1236, 1442, 1461, 1545, 1948, 2060, 2163, 2435, 2884, 2922, 3090, 3409, 3605, 4326, 4870, 5844, 6180, 6818, 7210, 7305, 8652, 9740, 10227, 10815, 13636, 14420, 14610, 17045, 20454, 21630, 29220, 34090, 40908, 43260, 50161, 51135, 68180, 100322, 102270, 150483, 200644, 204540, 250805, 300966, 351127, 501610, 601932, 702254, 752415, 1003220, 1053381, 1404508, 1504830, 1755635, 2106762, 3009660, 3511270, 4213524, 5266905, 7022540, 10533810, 21067620]

約数ペア:

[(1, 21067620), (2, 10533810), (3, 7022540), (4, 5266905), (5, 4213524), (6, 3511270), (7, 3009660), (10, 2106762), (12, 1755635), (14, 1504830), (15, 1404508), (20, 1053381), (21, 1003220), (28, 752415), (30, 702254), (35, 601932), (42, 501610), (60, 351127), (70, 300966), (84, 250805), (103, 204540), (105, 200644), (140, 150483), (206, 102270), (210, 100322), (309, 68180), (412, 51135), (420, 50161), (487, 43260), (515, 40908), (618, 34090), (721, 29220), (974, 21630), (1030, 20454), (1236, 17045), (1442, 14610), (1461, 14420), (1545, 13636), (1948, 10815), (2060, 10227), (2163, 9740), (2435, 8652), (2884, 7305), (2922, 7210), (3090, 6818), (3409, 6180), (3605, 5844), (4326, 4870)]