21593650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 22153550

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 239, 278, 325, 478, 650, 695, 1195, 1390, 1807, 2390, 3107, 3475, 3614, 5975, 6214, 6950, 9035, 11950, 15535, 18070, 31070, 33221, 45175, 66442, 77675, 90350, 155350, 166105, 332210, 431873, 830525, 863746, 1661050, 2159365, 4318730, 10796825, 21593650]

約数ペア:

[(1, 21593650), (2, 10796825), (5, 4318730), (10, 2159365), (13, 1661050), (25, 863746), (26, 830525), (50, 431873), (65, 332210), (130, 166105), (139, 155350), (239, 90350), (278, 77675), (325, 66442), (478, 45175), (650, 33221), (695, 31070), (1195, 18070), (1390, 15535), (1807, 11950), (2390, 9035), (3107, 6950), (3475, 6214), (3614, 5975)]