20461812

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 144

約数和(自身を含む): 62052480

約数和(自身を除く): 41590668

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 23, 28, 34, 42, 46, 49, 51, 68, 69, 84, 89, 92, 98, 102, 119, 138, 147, 161, 178, 196, 204, 238, 267, 276, 294, 322, 356, 357, 391, 476, 483, 534, 588, 623, 644, 714, 782, 833, 966, 1068, 1127, 1173, 1246, 1428, 1513, 1564, 1666, 1869, 1932, 2047, 2254, 2346, 2492, 2499, 2737, 3026, 3332, 3381, 3738, 4094, 4361, 4508, 4539, 4692, 4998, 5474, 6052, 6141, 6762, 7476, 8188, 8211, 8722, 9078, 9996, 10591, 10948, 12282, 13083, 13524, 14329, 16422, 17444, 18156, 19159, 21182, 24564, 26166, 28658, 31773, 32844, 34799, 38318, 42364, 42987, 52332, 57316, 57477, 63546, 69598, 74137, 76636, 85974, 100303, 104397, 114954, 127092, 139196, 148274, 171948, 200606, 208794, 222411, 229908, 243593, 296548, 300909, 401212, 417588, 444822, 487186, 601818, 730779, 889644, 974372, 1203636, 1461558, 1705151, 2923116, 3410302, 5115453, 6820604, 10230906, 20461812]

約数ペア:

[(1, 20461812), (2, 10230906), (3, 6820604), (4, 5115453), (6, 3410302), (7, 2923116), (12, 1705151), (14, 1461558), (17, 1203636), (21, 974372), (23, 889644), (28, 730779), (34, 601818), (42, 487186), (46, 444822), (49, 417588), (51, 401212), (68, 300909), (69, 296548), (84, 243593), (89, 229908), (92, 222411), (98, 208794), (102, 200606), (119, 171948), (138, 148274), (147, 139196), (161, 127092), (178, 114954), (196, 104397), (204, 100303), (238, 85974), (267, 76636), (276, 74137), (294, 69598), (322, 63546), (356, 57477), (357, 57316), (391, 52332), (476, 42987), (483, 42364), (534, 38318), (588, 34799), (623, 32844), (644, 31773), (714, 28658), (782, 26166), (833, 24564), (966, 21182), (1068, 19159), (1127, 18156), (1173, 17444), (1246, 16422), (1428, 14329), (1513, 13524), (1564, 13083), (1666, 12282), (1869, 10948), (1932, 10591), (2047, 9996), (2254, 9078), (2346, 8722), (2492, 8211), (2499, 8188), (2737, 7476), (3026, 6762), (3332, 6141), (3381, 6052), (3738, 5474), (4094, 4998), (4361, 4692), (4508, 4539)]