21483490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:619

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 26727710

約数列:

[1, 2, 5, 7, 10, 14, 19, 29, 35, 38, 58, 70, 95, 133, 145, 190, 203, 266, 290, 406, 551, 557, 665, 1015, 1102, 1114, 1330, 2030, 2755, 2785, 3857, 3899, 5510, 5570, 7714, 7798, 10583, 16153, 19285, 19495, 21166, 32306, 38570, 38990, 52915, 74081, 80765, 105830, 113071, 148162, 161530, 226142, 306907, 370405, 565355, 613814, 740810, 1130710, 1534535, 2148349, 3069070, 4296698, 10741745, 21483490]

約数ペア:

[(1, 21483490), (2, 10741745), (5, 4296698), (7, 3069070), (10, 2148349), (14, 1534535), (19, 1130710), (29, 740810), (35, 613814), (38, 565355), (58, 370405), (70, 306907), (95, 226142), (133, 161530), (145, 148162), (190, 113071), (203, 105830), (266, 80765), (290, 74081), (406, 52915), (551, 38990), (557, 38570), (665, 32306), (1015, 21166), (1102, 19495), (1114, 19285), (1330, 16153), (2030, 10583), (2755, 7798), (2785, 7714), (3857, 5570), (3899, 5510)]