20697516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3571}}^1$

素因数の和:3611

約数の個数: 72

約数和(自身を含む): 62409984

約数和(自身を除く): 41712468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 276, 322, 414, 483, 644, 828, 966, 1449, 1932, 2898, 3571, 5796, 7142, 10713, 14284, 21426, 24997, 32139, 42852, 49994, 64278, 74991, 82133, 99988, 128556, 149982, 164266, 224973, 246399, 299964, 328532, 449946, 492798, 574931, 739197, 899892, 985596, 1149862, 1478394, 1724793, 2299724, 2956788, 3449586, 5174379, 6899172, 10348758, 20697516]

約数ペア:

[(1, 20697516), (2, 10348758), (3, 6899172), (4, 5174379), (6, 3449586), (7, 2956788), (9, 2299724), (12, 1724793), (14, 1478394), (18, 1149862), (21, 985596), (23, 899892), (28, 739197), (36, 574931), (42, 492798), (46, 449946), (63, 328532), (69, 299964), (84, 246399), (92, 224973), (126, 164266), (138, 149982), (161, 128556), (207, 99988), (252, 82133), (276, 74991), (322, 64278), (414, 49994), (483, 42852), (644, 32139), (828, 24997), (966, 21426), (1449, 14284), (1932, 10713), (2898, 7142), (3571, 5796)]