21829518

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 53913600

約数和(自身を除く): 32084082

約数列:

[1, 2, 3, 6, 9, 18, 19, 29, 31, 38, 57, 58, 62, 71, 87, 93, 114, 142, 171, 174, 186, 213, 261, 279, 342, 426, 522, 551, 558, 589, 639, 899, 1102, 1178, 1278, 1349, 1653, 1767, 1798, 2059, 2201, 2697, 2698, 3306, 3534, 4047, 4118, 4402, 4959, 5301, 5394, 6177, 6603, 8091, 8094, 9918, 10602, 12141, 12354, 13206, 16182, 17081, 18531, 19809, 24282, 34162, 37062, 39121, 39618, 41819, 51243, 63829, 78242, 83638, 102486, 117363, 125457, 127658, 153729, 191487, 234726, 250914, 307458, 352089, 376371, 382974, 574461, 704178, 752742, 1148922, 1212751, 2425502, 3638253, 7276506, 10914759, 21829518]

約数ペア:

[(1, 21829518), (2, 10914759), (3, 7276506), (6, 3638253), (9, 2425502), (18, 1212751), (19, 1148922), (29, 752742), (31, 704178), (38, 574461), (57, 382974), (58, 376371), (62, 352089), (71, 307458), (87, 250914), (93, 234726), (114, 191487), (142, 153729), (171, 127658), (174, 125457), (186, 117363), (213, 102486), (261, 83638), (279, 78242), (342, 63829), (426, 51243), (522, 41819), (551, 39618), (558, 39121), (589, 37062), (639, 34162), (899, 24282), (1102, 19809), (1178, 18531), (1278, 17081), (1349, 16182), (1653, 13206), (1767, 12354), (1798, 12141), (2059, 10602), (2201, 9918), (2697, 8094), (2698, 8091), (3306, 6603), (3534, 6177), (4047, 5394), (4118, 5301), (4402, 4959)]