19321384

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 39400380

約数和(自身を除く): 20078996

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 137, 244, 274, 289, 488, 548, 578, 1037, 1096, 1156, 2074, 2312, 2329, 4148, 4658, 8296, 8357, 9316, 16714, 17629, 18632, 33428, 35258, 39593, 66856, 70516, 79186, 141032, 142069, 158372, 284138, 316744, 568276, 1136552, 2415173, 4830346, 9660692, 19321384]

約数ペア:

[(1, 19321384), (2, 9660692), (4, 4830346), (8, 2415173), (17, 1136552), (34, 568276), (61, 316744), (68, 284138), (122, 158372), (136, 142069), (137, 141032), (244, 79186), (274, 70516), (289, 66856), (488, 39593), (548, 35258), (578, 33428), (1037, 18632), (1096, 17629), (1156, 16714), (2074, 9316), (2312, 8357), (2329, 8296), (4148, 4658)]