19005844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 20507756

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 149, 223, 286, 298, 446, 572, 596, 892, 1639, 1937, 2453, 2899, 3278, 3874, 4906, 5798, 6556, 7748, 9812, 11596, 21307, 31889, 33227, 42614, 63778, 66454, 85228, 127556, 132908, 365497, 431951, 730994, 863902, 1461988, 1727804, 4751461, 9502922, 19005844]

約数ペア:

[(1, 19005844), (2, 9502922), (4, 4751461), (11, 1727804), (13, 1461988), (22, 863902), (26, 730994), (44, 431951), (52, 365497), (143, 132908), (149, 127556), (223, 85228), (286, 66454), (298, 63778), (446, 42614), (572, 33227), (596, 31889), (892, 21307), (1639, 11596), (1937, 9812), (2453, 7748), (2899, 6556), (3278, 5798), (3874, 4906)]