20805216453

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{127951}}^1$

素因数の和:128082

約数の個数: 48

約数和(自身を含む): 35928921600

約数和(自身を除く): 15123705147

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 89, 203, 261, 267, 609, 623, 801, 1827, 1869, 2581, 5607, 7743, 18067, 23229, 54201, 127951, 162603, 383853, 895657, 1151559, 2686971, 3710579, 8060913, 11131737, 11387639, 25974053, 33395211, 34162917, 77922159, 79713473, 102488751, 233766477, 239140419, 330241531, 717421257, 990724593, 2311690717, 2972173779, 6935072151, 20805216453]

約数ペア:

[(1, 20805216453), (3, 6935072151), (7, 2972173779), (9, 2311690717), (21, 990724593), (29, 717421257), (63, 330241531), (87, 239140419), (89, 233766477), (203, 102488751), (261, 79713473), (267, 77922159), (609, 34162917), (623, 33395211), (801, 25974053), (1827, 11387639), (1869, 11131737), (2581, 8060913), (5607, 3710579), (7743, 2686971), (18067, 1151559), (23229, 895657), (54201, 383853), (127951, 162603)]