21191898

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1049}}^1$

素因数の和:1111

約数の個数: 64

約数和(自身を含む): 53625600

約数和(自身を除く): 32433702

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 37, 39, 42, 74, 78, 91, 111, 182, 222, 259, 273, 481, 518, 546, 777, 962, 1049, 1443, 1554, 2098, 2886, 3147, 3367, 6294, 6734, 7343, 10101, 13637, 14686, 20202, 22029, 27274, 38813, 40911, 44058, 77626, 81822, 95459, 116439, 190918, 232878, 271691, 286377, 504569, 543382, 572754, 815073, 1009138, 1513707, 1630146, 3027414, 3531983, 7063966, 10595949, 21191898]

約数ペア:

[(1, 21191898), (2, 10595949), (3, 7063966), (6, 3531983), (7, 3027414), (13, 1630146), (14, 1513707), (21, 1009138), (26, 815073), (37, 572754), (39, 543382), (42, 504569), (74, 286377), (78, 271691), (91, 232878), (111, 190918), (182, 116439), (222, 95459), (259, 81822), (273, 77626), (481, 44058), (518, 40911), (546, 38813), (777, 27274), (962, 22029), (1049, 20202), (1443, 14686), (1554, 13637), (2098, 10101), (2886, 7343), (3147, 6734), (3367, 6294)]