21899696

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^3\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 80

約数和(自身を含む): 53121600

約数和(自身を除く): 31221904

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 89, 91, 104, 112, 169, 178, 182, 208, 338, 356, 364, 623, 676, 712, 728, 1157, 1183, 1246, 1352, 1424, 1456, 2197, 2314, 2366, 2492, 2704, 4394, 4628, 4732, 4984, 8099, 8788, 9256, 9464, 9968, 15041, 15379, 16198, 17576, 18512, 18928, 30082, 30758, 32396, 35152, 60164, 61516, 64792, 105287, 120328, 123032, 129584, 195533, 210574, 240656, 246064, 391066, 421148, 782132, 842296, 1368731, 1564264, 1684592, 2737462, 3128528, 5474924, 10949848, 21899696]

約数ペア:

[(1, 21899696), (2, 10949848), (4, 5474924), (7, 3128528), (8, 2737462), (13, 1684592), (14, 1564264), (16, 1368731), (26, 842296), (28, 782132), (52, 421148), (56, 391066), (89, 246064), (91, 240656), (104, 210574), (112, 195533), (169, 129584), (178, 123032), (182, 120328), (208, 105287), (338, 64792), (356, 61516), (364, 60164), (623, 35152), (676, 32396), (712, 30758), (728, 30082), (1157, 18928), (1183, 18512), (1246, 17576), (1352, 16198), (1424, 15379), (1456, 15041), (2197, 9968), (2314, 9464), (2366, 9256), (2492, 8788), (2704, 8099), (4394, 4984), (4628, 4732)]