21873332

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 43982400

約数和(自身を除く): 22109068

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 131, 169, 247, 262, 338, 494, 524, 676, 988, 1703, 2197, 2489, 3211, 3406, 4394, 4978, 6422, 6812, 8788, 9956, 12844, 22139, 32357, 41743, 44278, 64714, 83486, 88556, 129428, 166972, 287807, 420641, 575614, 841282, 1151228, 1682564, 5468333, 10936666, 21873332]

約数ペア:

[(1, 21873332), (2, 10936666), (4, 5468333), (13, 1682564), (19, 1151228), (26, 841282), (38, 575614), (52, 420641), (76, 287807), (131, 166972), (169, 129428), (247, 88556), (262, 83486), (338, 64714), (494, 44278), (524, 41743), (676, 32357), (988, 22139), (1703, 12844), (2197, 9956), (2489, 8788), (3211, 6812), (3406, 6422), (4394, 4978)]