21102350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 41924400

約数和(自身を除く): 20822050

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 97, 190, 194, 229, 458, 475, 485, 950, 970, 1145, 1843, 2290, 2425, 3686, 4351, 4850, 5725, 8702, 9215, 11450, 18430, 21755, 22213, 43510, 44426, 46075, 92150, 108775, 111065, 217550, 222130, 422047, 555325, 844094, 1110650, 2110235, 4220470, 10551175, 21102350]

約数ペア:

[(1, 21102350), (2, 10551175), (5, 4220470), (10, 2110235), (19, 1110650), (25, 844094), (38, 555325), (50, 422047), (95, 222130), (97, 217550), (190, 111065), (194, 108775), (229, 92150), (458, 46075), (475, 44426), (485, 43510), (950, 22213), (970, 21755), (1145, 18430), (1843, 11450), (2290, 9215), (2425, 8702), (3686, 5725), (4351, 4850)]