21223000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1117}}^1$

素因数の和:1157

約数の個数: 64

約数和(自身を含む): 52322400

約数和(自身を除く): 31099400

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1117, 1900, 2234, 2375, 3800, 4468, 4750, 5585, 8936, 9500, 11170, 19000, 21223, 22340, 27925, 42446, 44680, 55850, 84892, 106115, 111700, 139625, 169784, 212230, 223400, 279250, 424460, 530575, 558500, 848920, 1061150, 1117000, 2122300, 2652875, 4244600, 5305750, 10611500, 21223000]

約数ペア:

[(1, 21223000), (2, 10611500), (4, 5305750), (5, 4244600), (8, 2652875), (10, 2122300), (19, 1117000), (20, 1061150), (25, 848920), (38, 558500), (40, 530575), (50, 424460), (76, 279250), (95, 223400), (100, 212230), (125, 169784), (152, 139625), (190, 111700), (200, 106115), (250, 84892), (380, 55850), (475, 44680), (500, 42446), (760, 27925), (950, 22340), (1000, 21223), (1117, 19000), (1900, 11170), (2234, 9500), (2375, 8936), (3800, 5585), (4468, 4750)]