21518838

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2170

約数の個数: 64

約数和(自身を含む): 55261440

約数和(自身を除く): 33742602

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 27, 33, 34, 51, 54, 66, 99, 102, 153, 187, 198, 297, 306, 374, 459, 561, 594, 918, 1122, 1683, 2131, 3366, 4262, 5049, 6393, 10098, 12786, 19179, 23441, 36227, 38358, 46882, 57537, 70323, 72454, 108681, 115074, 140646, 210969, 217362, 326043, 398497, 421938, 632907, 652086, 796994, 978129, 1195491, 1265814, 1956258, 2390982, 3586473, 7172946, 10759419, 21518838]

約数ペア:

[(1, 21518838), (2, 10759419), (3, 7172946), (6, 3586473), (9, 2390982), (11, 1956258), (17, 1265814), (18, 1195491), (22, 978129), (27, 796994), (33, 652086), (34, 632907), (51, 421938), (54, 398497), (66, 326043), (99, 217362), (102, 210969), (153, 140646), (187, 115074), (198, 108681), (297, 72454), (306, 70323), (374, 57537), (459, 46882), (561, 38358), (594, 36227), (918, 23441), (1122, 19179), (1683, 12786), (2131, 10098), (3366, 6393), (4262, 5049)]