21196872

素因数分解:

$2^3\times 3^2\times {\mathrm{83}}^1\times {\mathrm{3547}}^1$

素因数の和:3642

約数の個数: 48

約数和(自身を含む): 58116240

約数和(自身を除く): 36919368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 83, 166, 249, 332, 498, 664, 747, 996, 1494, 1992, 2988, 3547, 5976, 7094, 10641, 14188, 21282, 28376, 31923, 42564, 63846, 85128, 127692, 255384, 294401, 588802, 883203, 1177604, 1766406, 2355208, 2649609, 3532812, 5299218, 7065624, 10598436, 21196872]

約数ペア:

[(1, 21196872), (2, 10598436), (3, 7065624), (4, 5299218), (6, 3532812), (8, 2649609), (9, 2355208), (12, 1766406), (18, 1177604), (24, 883203), (36, 588802), (72, 294401), (83, 255384), (166, 127692), (249, 85128), (332, 63846), (498, 42564), (664, 31923), (747, 28376), (996, 21282), (1494, 14188), (1992, 10641), (2988, 7094), (3547, 5976)]