21995450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 43892280

約数和(自身を除く): 21896830

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 113, 170, 226, 229, 425, 458, 565, 850, 1130, 1145, 1921, 2290, 2825, 3842, 3893, 5650, 5725, 7786, 9605, 11450, 19210, 19465, 25877, 38930, 48025, 51754, 96050, 97325, 129385, 194650, 258770, 439909, 646925, 879818, 1293850, 2199545, 4399090, 10997725, 21995450]

約数ペア:

[(1, 21995450), (2, 10997725), (5, 4399090), (10, 2199545), (17, 1293850), (25, 879818), (34, 646925), (50, 439909), (85, 258770), (113, 194650), (170, 129385), (226, 97325), (229, 96050), (425, 51754), (458, 48025), (565, 38930), (850, 25877), (1130, 19465), (1145, 19210), (1921, 11450), (2290, 9605), (2825, 7786), (3842, 5725), (3893, 5650)]