19196944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 43590960

約数和(自身を除く): 24394016

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 61, 68, 89, 104, 122, 136, 178, 208, 221, 244, 272, 356, 442, 488, 712, 793, 884, 976, 1037, 1157, 1424, 1513, 1586, 1768, 2074, 2314, 3026, 3172, 3536, 4148, 4628, 5429, 6052, 6344, 8296, 9256, 10858, 12104, 12688, 13481, 16592, 18512, 19669, 21716, 24208, 26962, 39338, 43432, 53924, 70577, 78676, 86864, 92293, 107848, 141154, 157352, 184586, 215696, 282308, 314704, 369172, 564616, 738344, 1129232, 1199809, 1476688, 2399618, 4799236, 9598472, 19196944]

約数ペア:

[(1, 19196944), (2, 9598472), (4, 4799236), (8, 2399618), (13, 1476688), (16, 1199809), (17, 1129232), (26, 738344), (34, 564616), (52, 369172), (61, 314704), (68, 282308), (89, 215696), (104, 184586), (122, 157352), (136, 141154), (178, 107848), (208, 92293), (221, 86864), (244, 78676), (272, 70577), (356, 53924), (442, 43432), (488, 39338), (712, 26962), (793, 24208), (884, 21716), (976, 19669), (1037, 18512), (1157, 16592), (1424, 13481), (1513, 12688), (1586, 12104), (1768, 10858), (2074, 9256), (2314, 8296), (3026, 6344), (3172, 6052), (3536, 5429), (4148, 4628)]