21835695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 20465745

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 71, 87, 101, 105, 145, 203, 213, 303, 355, 435, 497, 505, 609, 707, 1015, 1065, 1491, 1515, 2059, 2121, 2485, 2929, 3045, 3535, 6177, 7171, 7455, 8787, 10295, 10605, 14413, 14645, 20503, 21513, 30885, 35855, 43239, 43935, 50197, 61509, 72065, 102515, 107565, 150591, 207959, 216195, 250985, 307545, 623877, 752955, 1039795, 1455713, 3119385, 4367139, 7278565, 21835695]

約数ペア:

[(1, 21835695), (3, 7278565), (5, 4367139), (7, 3119385), (15, 1455713), (21, 1039795), (29, 752955), (35, 623877), (71, 307545), (87, 250985), (101, 216195), (105, 207959), (145, 150591), (203, 107565), (213, 102515), (303, 72065), (355, 61509), (435, 50197), (497, 43935), (505, 43239), (609, 35855), (707, 30885), (1015, 21513), (1065, 20503), (1491, 14645), (1515, 14413), (2059, 10605), (2121, 10295), (2485, 8787), (2929, 7455), (3045, 7171), (3535, 6177)]