21015050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 45205440

約数和(自身を除く): 24190390

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 97, 175, 194, 350, 485, 619, 679, 970, 1238, 1358, 2425, 3095, 3395, 4333, 4850, 6190, 6790, 8666, 15475, 16975, 21665, 30950, 33950, 43330, 60043, 108325, 120086, 216650, 300215, 420301, 600430, 840602, 1501075, 2101505, 3002150, 4203010, 10507525, 21015050]

約数ペア:

[(1, 21015050), (2, 10507525), (5, 4203010), (7, 3002150), (10, 2101505), (14, 1501075), (25, 840602), (35, 600430), (50, 420301), (70, 300215), (97, 216650), (175, 120086), (194, 108325), (350, 60043), (485, 43330), (619, 33950), (679, 30950), (970, 21665), (1238, 16975), (1358, 15475), (2425, 8666), (3095, 6790), (3395, 6190), (4333, 4850)]