21869570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 22367230

約数列:

[1, 2, 5, 10, 19, 31, 38, 47, 62, 79, 94, 95, 155, 158, 190, 235, 310, 395, 470, 589, 790, 893, 1178, 1457, 1501, 1786, 2449, 2914, 2945, 3002, 3713, 4465, 4898, 5890, 7285, 7426, 7505, 8930, 12245, 14570, 15010, 18565, 24490, 27683, 37130, 46531, 55366, 70547, 93062, 115103, 138415, 141094, 230206, 232655, 276830, 352735, 465310, 575515, 705470, 1151030, 2186957, 4373914, 10934785, 21869570]

約数ペア:

[(1, 21869570), (2, 10934785), (5, 4373914), (10, 2186957), (19, 1151030), (31, 705470), (38, 575515), (47, 465310), (62, 352735), (79, 276830), (94, 232655), (95, 230206), (155, 141094), (158, 138415), (190, 115103), (235, 93062), (310, 70547), (395, 55366), (470, 46531), (589, 37130), (790, 27683), (893, 24490), (1178, 18565), (1457, 15010), (1501, 14570), (1786, 12245), (2449, 8930), (2914, 7505), (2945, 7426), (3002, 7285), (3713, 5890), (4465, 4898)]