20644974

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:374

約数の個数: 72

約数和(自身を含む): 52818480

約数和(自身を除く): 32173506

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 89, 98, 126, 147, 178, 263, 267, 294, 441, 526, 534, 623, 789, 801, 882, 1246, 1578, 1602, 1841, 1869, 2367, 3682, 3738, 4361, 4734, 5523, 5607, 8722, 11046, 11214, 12887, 13083, 16569, 23407, 25774, 26166, 33138, 38661, 39249, 46814, 70221, 77322, 78498, 115983, 140442, 163849, 210663, 231966, 327698, 421326, 491547, 983094, 1146943, 1474641, 2293886, 2949282, 3440829, 6881658, 10322487, 20644974]

約数ペア:

[(1, 20644974), (2, 10322487), (3, 6881658), (6, 3440829), (7, 2949282), (9, 2293886), (14, 1474641), (18, 1146943), (21, 983094), (42, 491547), (49, 421326), (63, 327698), (89, 231966), (98, 210663), (126, 163849), (147, 140442), (178, 115983), (263, 78498), (267, 77322), (294, 70221), (441, 46814), (526, 39249), (534, 38661), (623, 33138), (789, 26166), (801, 25774), (882, 23407), (1246, 16569), (1578, 13083), (1602, 12887), (1841, 11214), (1869, 11046), (2367, 8722), (3682, 5607), (3738, 5523), (4361, 4734)]