19530004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 38497536

約数和(自身を除く): 18967532

約数列:

[1, 2, 4, 13, 26, 47, 52, 61, 94, 122, 131, 188, 244, 262, 524, 611, 793, 1222, 1586, 1703, 2444, 2867, 3172, 3406, 5734, 6157, 6812, 7991, 11468, 12314, 15982, 24628, 31964, 37271, 74542, 80041, 103883, 149084, 160082, 207766, 320164, 375577, 415532, 751154, 1502308, 4882501, 9765002, 19530004]

約数ペア:

[(1, 19530004), (2, 9765002), (4, 4882501), (13, 1502308), (26, 751154), (47, 415532), (52, 375577), (61, 320164), (94, 207766), (122, 160082), (131, 149084), (188, 103883), (244, 80041), (262, 74542), (524, 37271), (611, 31964), (793, 24628), (1222, 15982), (1586, 12314), (1703, 11468), (2444, 7991), (2867, 6812), (3172, 6157), (3406, 5734)]