21550830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2503}}^1$

素因数の和:2561

約数の個数: 64

約数和(自身を含む): 60576768

約数和(自身を除く): 39025938

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 42, 70, 82, 105, 123, 205, 210, 246, 287, 410, 574, 615, 861, 1230, 1435, 1722, 2503, 2870, 4305, 5006, 7509, 8610, 12515, 15018, 17521, 25030, 35042, 37545, 52563, 75090, 87605, 102623, 105126, 175210, 205246, 262815, 307869, 513115, 525630, 615738, 718361, 1026230, 1436722, 1539345, 2155083, 3078690, 3591805, 4310166, 7183610, 10775415, 21550830]

約数ペア:

[(1, 21550830), (2, 10775415), (3, 7183610), (5, 4310166), (6, 3591805), (7, 3078690), (10, 2155083), (14, 1539345), (15, 1436722), (21, 1026230), (30, 718361), (35, 615738), (41, 525630), (42, 513115), (70, 307869), (82, 262815), (105, 205246), (123, 175210), (205, 105126), (210, 102623), (246, 87605), (287, 75090), (410, 52563), (574, 37545), (615, 35042), (861, 25030), (1230, 17521), (1435, 15018), (1722, 12515), (2503, 8610), (2870, 7509), (4305, 5006)]