21915210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 56391552

約数和(自身を除く): 34476342

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 97, 102, 170, 194, 255, 291, 443, 485, 510, 582, 886, 970, 1329, 1455, 1649, 2215, 2658, 2910, 3298, 4430, 4947, 6645, 7531, 8245, 9894, 13290, 15062, 16490, 22593, 24735, 37655, 42971, 45186, 49470, 75310, 85942, 112965, 128913, 214855, 225930, 257826, 429710, 644565, 730507, 1289130, 1461014, 2191521, 3652535, 4383042, 7305070, 10957605, 21915210]

約数ペア:

[(1, 21915210), (2, 10957605), (3, 7305070), (5, 4383042), (6, 3652535), (10, 2191521), (15, 1461014), (17, 1289130), (30, 730507), (34, 644565), (51, 429710), (85, 257826), (97, 225930), (102, 214855), (170, 128913), (194, 112965), (255, 85942), (291, 75310), (443, 49470), (485, 45186), (510, 42971), (582, 37655), (886, 24735), (970, 22593), (1329, 16490), (1455, 15062), (1649, 13290), (2215, 9894), (2658, 8245), (2910, 7531), (3298, 6645), (4430, 4947)]