19798038

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:174

約数の個数: 96

約数和(自身を含む): 50100960

約数和(自身を除く): 30302922

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 61, 73, 78, 114, 117, 122, 146, 171, 183, 219, 234, 247, 342, 366, 438, 494, 549, 657, 741, 793, 949, 1098, 1159, 1314, 1387, 1482, 1586, 1898, 2223, 2318, 2379, 2774, 2847, 3477, 4161, 4446, 4453, 4758, 5694, 6954, 7137, 8322, 8541, 8906, 10431, 12483, 13359, 14274, 15067, 17082, 18031, 20862, 24966, 26718, 30134, 36062, 40077, 45201, 54093, 57889, 80154, 84607, 90402, 108186, 115778, 135603, 162279, 169214, 173667, 253821, 271206, 324558, 347334, 507642, 521001, 761463, 1042002, 1099891, 1522926, 2199782, 3299673, 6599346, 9899019, 19798038]

約数ペア:

[(1, 19798038), (2, 9899019), (3, 6599346), (6, 3299673), (9, 2199782), (13, 1522926), (18, 1099891), (19, 1042002), (26, 761463), (38, 521001), (39, 507642), (57, 347334), (61, 324558), (73, 271206), (78, 253821), (114, 173667), (117, 169214), (122, 162279), (146, 135603), (171, 115778), (183, 108186), (219, 90402), (234, 84607), (247, 80154), (342, 57889), (366, 54093), (438, 45201), (494, 40077), (549, 36062), (657, 30134), (741, 26718), (793, 24966), (949, 20862), (1098, 18031), (1159, 17082), (1314, 15067), (1387, 14274), (1482, 13359), (1586, 12483), (1898, 10431), (2223, 8906), (2318, 8541), (2379, 8322), (2774, 7137), (2847, 6954), (3477, 5694), (4161, 4758), (4446, 4453)]