21312564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{673}}^1$

素因数の和:729

約数の個数: 96

約数和(自身を含む): 63409920

約数和(自身を除く): 42097356

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 52, 58, 78, 84, 87, 91, 116, 156, 174, 182, 203, 273, 348, 364, 377, 406, 546, 609, 673, 754, 812, 1092, 1131, 1218, 1346, 1508, 2019, 2262, 2436, 2639, 2692, 4038, 4524, 4711, 5278, 7917, 8076, 8749, 9422, 10556, 14133, 15834, 17498, 18844, 19517, 26247, 28266, 31668, 34996, 39034, 52494, 56532, 58551, 61243, 78068, 104988, 117102, 122486, 136619, 183729, 234204, 244972, 253721, 273238, 367458, 409857, 507442, 546476, 734916, 761163, 819714, 1014884, 1522326, 1639428, 1776047, 3044652, 3552094, 5328141, 7104188, 10656282, 21312564]

約数ペア:

[(1, 21312564), (2, 10656282), (3, 7104188), (4, 5328141), (6, 3552094), (7, 3044652), (12, 1776047), (13, 1639428), (14, 1522326), (21, 1014884), (26, 819714), (28, 761163), (29, 734916), (39, 546476), (42, 507442), (52, 409857), (58, 367458), (78, 273238), (84, 253721), (87, 244972), (91, 234204), (116, 183729), (156, 136619), (174, 122486), (182, 117102), (203, 104988), (273, 78068), (348, 61243), (364, 58551), (377, 56532), (406, 52494), (546, 39034), (609, 34996), (673, 31668), (754, 28266), (812, 26247), (1092, 19517), (1131, 18844), (1218, 17498), (1346, 15834), (1508, 14133), (2019, 10556), (2262, 9422), (2436, 8749), (2639, 8076), (2692, 7917), (4038, 5278), (4524, 4711)]