19530

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1$

素因数の和:51

約数の個数: 48

約数和(自身を含む): 59904

約数和(自身を除く): 40374

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 62, 63, 70, 90, 93, 105, 126, 155, 186, 210, 217, 279, 310, 315, 434, 465, 558, 630, 651, 930, 1085, 1302, 1395, 1953, 2170, 2790, 3255, 3906, 6510, 9765, 19530]

約数ペア:

[(1, 19530), (2, 9765), (3, 6510), (5, 3906), (6, 3255), (7, 2790), (9, 2170), (10, 1953), (14, 1395), (15, 1302), (18, 1085), (21, 930), (30, 651), (31, 630), (35, 558), (42, 465), (45, 434), (62, 315), (63, 310), (70, 279), (90, 217), (93, 210), (105, 186), (126, 155)]